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The distribution of asteroids across the Main Belt has been studied for decades to understand the compositional distribution and what that tells us about the formation and evolution of our solar system. All-sky surveys now provide orders of…

地球与行星天体物理 · 物理学 2015-06-16 Francesca DeMeo , Benoit Carry

A considerable amount of information regarding the processes that occurred during the accretion of the early planetesimals is still present among the small bodies of our solar system. A review of our current knowledge of the density of…

地球与行星天体物理 · 物理学 2015-06-04 Benoit Carry

Asteroid spectroscopy reflects surface mineralogy. There are few thousand asteroids whose surfaces have been observed spectrally. Determining the surface properties of those objects is important for many practical and scientific…

地球与行星天体物理 · 物理学 2014-11-26 D. A. Oszkiewicz , T. Kwiatkowski , T. Tomov , M. Birlan , S. Geier , A. Penttilä , M. Polińska

The main belt, the region between the orbits of Mars and Jupiter, is home to more than 1 million asteroids. These asteroids form orbital groups, (i.e., asteroid families formed by collisions) and also spectral groups (taxonomies) with…

地球与行星天体物理 · 物理学 2026-03-25 Michael Vávra , Miroslav Brož

The taxonomic classification of asteroids has been mostly based on spectroscopic observations with wavelengths spanning from the VIS to the NIR. VIS-NIR spectra of $\sim$2500 asteroids have been obtained since the 1970s; the SDSS MOC 4 was…

地球与行星天体物理 · 物理学 2022-08-10 Dong-Goo Roh , Hong-Kyu Moon , Min-Su Shin , Francesca E. DeMeo

The classification of the minor bodies of the Solar System based on observables has been continuously developed and iterated over the past 40 years. While prior iterations followed either the availability of large observational campaigns or…

地球与行星天体物理 · 物理学 2022-09-21 Max Mahlke , Benoit Carry , Pierre-Alexandre Mattei

Large and publicly available astronomical archives open up new possibilities to search and study Solar System objects. However, advanced techniques are required to deal with the large amounts of data. These unbiased surveys can be used to…

We aim to provide a taxonomic classification for asteroids observed by VISTA-VHS survey. We derive a method for assigning a compositional type to an object based on its (Y-J), (J-Ks), and (H-Ks) colors. We present a taxonomic classification…

地球与行星天体物理 · 物理学 2018-09-12 M. Popescu , J. Licandro , J. M. Carvano , R. Stoicescu , J. de Leon , D. Morate , I. L. Boaca , C. P. Cristescu

Previous works have identified families halos by an analysis in proper elements domains, or by using Sloan Digital Sky Survey-Moving Object Catalog data, fourth release (SDSS-MOC4) multi-band photometry to infer the asteroid taxonomy, or by…

地球与行星天体物理 · 物理学 2015-06-16 V. Carruba , R. C. Domingos , D. Nesvorný , F. Roig , M. E. Huaman , D. Souami

Using albedos from WISE/NEOWISE to separate distinct albedo groups within the Main Belt asteroids, we apply the Hierarchical Clustering Method to these subpopulations and identify dynamically associated clusters of asteroids. While this…

地球与行星天体物理 · 物理学 2015-06-15 Joseph R. Masiero , A. K. Mainzer , J. M. Bauer , T. Grav , C. R. Nugent , R. Stevenson

We are in an era of large catalogs and, thus, statistical analysis tools for large data sets, such as machine learning, play a fundamental role. One example of such a survey is the Sloan Moving Object Catalog (MOC), which lists the…

地球与行星天体物理 · 物理学 2022-10-12 M. Colazo , A. Alvarez-Candal , R. Duffard

The NEOWISE dataset offers the opportunity to study the variations in albedo for asteroid classification schemes based on visible and near-infrared observations for a large sample of minor planets. We have determined the albedos for nearly…

地球与行星天体物理 · 物理学 2015-05-30 A. Mainzer , T. Grav , J. Masiero , J. Bauer , E. Hand , D. Tholen , R. S. McMillan , T. Spahr , R. M. Cutri , E. Wright , J. Watkins , W. Mo , C. Maleszewski

We aim to determine the distribution of basaltic asteroids (classified as V-types) based on the spectrophotometric data reported in the MOVIS-C catalogue. A total of 782 asteroids were identified. The observations with all four filters (Y,…

地球与行星天体物理 · 物理学 2020-01-08 Jad-Alexandru Mansour , Marcel Popescu , Julia de León , Javier Licandro

We study the surface composition of asteroids with visible and/or infrared spectroscopy. For example, asteroid taxonomy is based on the spectral features or multiple color indices in visible and near-infrared wavelengths. The composition of…

地球与行星天体物理 · 物理学 2023-11-21 Nanping Luo , Xiaobin Wang , Shenghong Gu , Antti Penttilä , Karri Muinonen , Yisi Liu

We have combined the NEOWISE and Sloan Digital Sky Survey data to study the albedos of 24,353 asteroids with candidate taxonomic classifications derived using Sloan photometry. We find a wide range of moderate to high albedos for candidate…

地球与行星天体物理 · 物理学 2015-05-30 A. Mainzer , J. Masiero , T. Grav , J. Bauer , D. J. Tholen , R. S. McMillan , E. Wright , T. Spahr , R. M. Cutri , R. Walker , W. Mo , J. Watkins , E. Hand , C. Maleszewski

We present here multi-band photometry for over 2000 Main-belt asteroids. For each target we report the probabilistic taxonomy using the measured V-R and V-I colors in combination with a machine-learning generated decision surface in…

地球与行星天体物理 · 物理学 2019-06-05 N. Erasmus , A. McNeill , M. Mommert , D. E. Trilling , A. A. Sickafoose , K. Paterson

Gaia Data Release 2 includes observational data for 14,099 pre-selected asteroids. From the sparsely sampled G band photometry, we derive lower-limit lightcurve amplitudes for 11,665 main belt asteroids in order to provide constraints on…

地球与行星天体物理 · 物理学 2018-09-12 Michael Mommert , Andrew McNeill , David E. Trilling , Nicholas Moskovitz , Marco Delbo'

Asteroids are an indelible part of most astronomical surveys though only a few surveys are dedicated to their detection. Over the years, high cadence microlensing surveys have amassed several terabytes of data while scanning primarily the…

地球与行星天体物理 · 物理学 2023-02-03 Preeti Cowan , Ian A. Bond , Napoleon H. Reyes

The nature and origin of the asteroids orbiting in near-Earth space, including those on a potentially hazardous trajectory, is of both scientific interest and practical importance. We aim here at determining the taxonomy of a large sample…

地球与行星天体物理 · 物理学 2016-02-24 Benoit Carry , Enrique Solano , Siegfried Eggl , Francesca E. DeMeo

In recent years several small basaltic V-type asteroids have been identified all around the main belt. Most of them are members of the Vesta dynamical family, but an increasingly large number appear to have no link with it. The question…

地球与行星天体物理 · 物理学 2015-10-30 S. Ieva , E. Dotto , D. Lazzaro , D. Perna , D. Fulvio , M. Fulchignoni
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